baber/WOPTO huggingface dataset:
Patent CA-1104019-A (CA)
Inventor: BACAL KAZIMIERZ
IPC: A61B17/66
Filed: 1977-06-27
Granted: 1981-06-30
Abstract: ABSTRACT OF THE DISCLOSURE This invention relates to an appliance for correction of spinal curvatures, performed in course of treatment by means of surgical struts.          The appliance has the form of a double-arm lever making it possible to extend the effective length of the strut placed in the patient's body. One arm of said lever ends with a holder for clamping the hook of the strut, the other arm being provided with a screw adjusting the spacing of the arms and the displacement of the hook along the strut.  This other arm is split longitudinally, one limb being provided with a tapped hole wherein said adjusting screw operates, whereas the other limb is provided with a clearance hole, and with a pivot wherein the link mechanism and the pointer of a dynamometer are mounted.  The side surface of this other arm carries a scale over which the tip of the pointer travels indicating the value of the force being applied to the operator.
Patent CA-1057039-A (CA)
Inventor: WIER DONALD R
IPC: C09K8/70
Filed: 1977-09-13
Granted: 1979-06-26
Abstract: Abstract of the Disclosure Thiourea functions as a solutions viscosity stabilizer in aqueous compositions comprising thiourea, nonionic polymers such as polyalkylene oxides and anionic surfactants such as petroleum sulfonates.  The aqueous compositions are useful in connections with fluid-drive oil recovery pro-cesses, processes for drilling, completing or working over walls, or the like process in which a thickened fluid is injected into or brought into contact with a subterranean earth formation.
Patent CA-1075071-A (CA)
Inventor: GREEN ROBERT V
IPC: A01B61/04
Filed: 1977-09-21
Granted: 1980-04-08
Abstract: TOOL SUPPORT              Abstract of the Disclosure An earthworking tool suspension system composed of a pair of vertically disposed and fore-and-aft extending four bar linkages in which the coupler link of the front linkage is the base link of the rear linkage, the tool standard has an upper part that is pivotally connected to the lower link of the front linkage and the coupler link of the second linkage, and the part serves as the lower link of the rear four bar linkage.  A biasing means is provided and is connected to both four bar linkages.  The front four bar linkage permits the tool to float vertically with little change in attitude.  The two four bar linkages in series permit the tool to rotate and rise relative to the main frame of the implement, when the tool strikes an obstruction requiring such action.
Patent CA-1111117-A (CA)
Inventor: WALL BILL R
IPC: H01C10/50
Filed: 1977-09-28
Granted: 1981-10-20
Abstract: ABSTRACT OF THE DISCLOSURE        A pivoted power controller in its limit positions engages a switch operating element to shunt or open a power control circuit through switch contacts mounted on a circuit board.  A resistive element mounted in the same circuit board is engaged by a wiper on the controller during travel between its limit positions to vary the power supplied to a load.          The resistance of the resistive element may be adjustably varied by a trimmer mounted on the circuit board adjacent one end of the resistive element.
Patent CA-1070132-A (CA)
Inventor: WOLF JOHN C
IPC: F16D3/00
Filed: 1978-02-07
Granted: 1980-01-22
Abstract: Abstract of the Disclosure:           A flexible coupling for rotatable shafts in the form of a metal bellows features a concentric sleeve which is fastened to one end of the coupling and which terminates in a plurality of fingers or keys projecting into, but without contact with, slots in the opposite end of the coupling.  In normal use, the coupling transmits rotary motion from one shaft to the other shaft solely through the connecting bellows which provides the flexibility required for small amounts of misalignment and obliqueness of the coupled shafts.  If the bellows broke, the concentirc sleeve would function as the fail-safe coupling member to continue the transmission of the rotary motion.
Patent CA-1103752-A (CA)
Inventor: CANUP ROBERT E
IPC: F02P3/01
Filed: 1978-02-27
Granted: 1981-06-23
Abstract: AN AC TYPE IGNITION SYSTEM       (D#74,581-F) Abstract of the Disclosure An electronic control circuit for use in connection with an AC type ignition system which employs a relatively high frequency oscillator.          The oscillator generates an AC spark signal that has a controlled duration.  The starting of each spark signal is controlled by an engine-timed signal, and the time duration of the spark signal is made inversely proportional to the engine speed.          The result is an AC spark with a duration that coincides with a constant degree of crank angle rotation of the engine.     I
Patent CA-1105614-A (CA)
Inventor: MUNSON ROBERT E
IPC: H01Q1/42
Filed: 1978-06-08
Granted: 1981-07-21
Abstract: ABSTRACT             A resonant circularly or elliptically polarized microstrip radiator wherein the size of the radiator is reduced in the resonant or non-resonant dimensions, or both, without reducing the effective resonant dimension or sub-stantially lowering the efficiency of the radiator.  Reduction of the resonant dimension is provided by folding the resonant cavity, while reduction of the non-resonant dimension is facilitated by utilization of a low density, low loss dielectric, such that the loss resistance of the element is appreciable with respect to the radiation resistance of the element. The preferred embodiment comprises interdigitated antenna structures.
Patent CA-1095335-A (CA)
Inventor: SPANEL ABRAM N
IPC: D05C15/20
Filed: 1978-06-29
Granted: 1981-02-10
Abstract: TUFTING NEEDLE BAR AND NEEDLE BAR ASSEMBLY                 ABSTRACT OF THE DISCLOSURE         A substantially lightweight tufting needle bar and needle bar assembly of improved construction comprising preferably a hollow needle bar including a needle bar insert pin plate or base type portion having vertical bores for receiving needles.  Horizon-tal bores intersect with the vertical bores to permit the insertion of roll pins which secure and lock the needles in place.  The needles are horizontally grooved to enable precise securement by the roll pins.  In the hollow needle bar embodiment, the outer channel of the needle bar is kept thin to provide an extremely light weight construction.
Patent CA-1099227-A (CA)
Title: Procede de production de microbulles aptes a assurer le traitement d'une suspension
Inventor: LECOFFRE YVES
IPC: B03D1/14
Filed: 1978-07-24
Granted: 1981-04-14
Abstract: Procédé de production de microbulles aptes à assurer le traitement d'une suspension par flottation dans une cuve par la fermeture brusque d'un clapet disposé à l'extrémité amont d'une conduite reliée à ladite cuve, et dans laquelle circule la suspension à traiter, convenablement enrichie en gaz dissous.
Patent CA-1131113-A (CA)
Title: Apparatus to determine the sedimentation rate of  the red blood corpuscles
Inventor: BRETHAUER ULRICH
IPC: G01N15/05
Filed: 1979-08-10
Granted: 1982-09-07
Abstract: Abstract of the Disclosure Apparatus for the determination of the sedimen-tation rate of red blood cells comprising a sedimentation tube adapted to hold a blood column, and a closure valve on one end of the sedimentation tube with said closure valve having a self-sealing valve means.
Patent CA-1134888-A (CA)
Inventor: LOSETH RAYMOND
IPC: B60J7/08
Filed: 1978-09-07
Granted: 1982-11-02
Abstract: ABSTRACT OF THE DISCLOSURE            A cover assembly for a dump truck comprises a pair of spaced-apart arms extending upwardly at the sides of an open rear body of the truck.  A flexible cover is connected to the top of the arms at one end and to the front of the body at the other end.  A take up roller is connected to one end of the cover and is resiliently biased to rotate the roller and take up the cover.  A mechanism for covering the body is activated by downward movement of the body and comprises a first portion for rotating the arms connected near the bottom end of at least one arm.  The mechanism extends to the chassis and cab portion of the truck when the body is in a raised position so that downward movement of the body exerts a force on the first portion of the mecha-nism, rotating the arms towards the back of the body and covering the body with the cover.
Patent CA-1112430-A (CA)
Inventor: SCOTT JOHN J
IPC: B01J2/26
Filed: 1978-12-11
Granted: 1981-11-17
Abstract: ABSTRACT OF THE DISCLOSURE           A continuous process for casting a molten oxide such as an aluminous oxide abrasive is provided wherein two thin metal belts are brought into face-to-face relation and the molten oxide is poured into the nip between the belts as they come into face-to-face relation.  The freezing abrasive maintains the belts slightly  paced apart on the order of some small fraction of an inch (e.g. 1/16) and the back surface of the belt is flooded with copious quantities of cooling fluid (e.g. water) to maintain the belts below red heat.  The belts are held in closely spaced re-lation for a sufficient time to permit the abrasive to be cooled below red heat.  The belts are then separated and the abrasive is discharged from between the belts.  At this point the abrasive is no longer affected by contaminants in the air, this aspect of the invention being particularly important in those embodiments of the invention where the molten abrasive (e.g. alumina zirconia abrasive) contains reduction products such as sub-oxides or ele-mental metal particles.  In a preferred embodiment of the invention the top belt can be considerably wider than the bottom belt so that there is no water maintained on an upwardly facing surface which is subsequently to contact the molten abrasive.
Patent CA-1097925-A (CA)
Title: Method for the recovery of actinide elements from nuclear reactor waste
Inventor: HORWITZ E PHILIP
IPC: G21F9/00
Filed: 1978-12-21
Granted: 1981-03-24
Abstract: ABSTRACT OF THE INVENTION    A process for partitioning and recovering actinide values from acidic waste solutions resulting from reprocessing of irradiated nuclear fuels by adding hydroxylammonium nitrate and hydrazine to the waste solution to adjust the valence of the neptunium and plutonium values in the solution to the +4 oxidation state, thus forming a feed solution and contacting the feed solution with an extractant of di-hexoxyethyl phosphoric acid in an organic diluent whereby the actinide values, most of the rare earth values and some fission product values are taken up by the extractant.  Separation is achieved by contacting the loaded extractant with two aqueous strip solutions, a nitric acid solution to selectively strip the americium, curium and rare earth values and an oxalate solution of tetramethylammonium hydrogen oxalate and oxalic acid or trimethylammonium hydrogen oxalate to selectively strip the neptunium, plutonium and fission product values.          Uranium values remain in the extractant and may be recovered with a phosphoric acid strip.  The neptunium and plutonium values are recovered from the oxalate by adding sufficient nitric acid to destroy the complexing ability of the oxalate, forming a second feed, and contacting the second feed with a second extractant of tricaprylmethylammonlum nitrate in an inert diluent whereby the neptunium and plutonium values are selectively extracted.  The values are recovered from the extractant with formic acid.
Patent CA-1110092-A (CA)
Inventor: SANO NARIAKI
IPC: F16B25/10
Filed: 1979-01-04
Granted: 1981-10-06
Abstract: ENTERING END PORTION OF DRILL SCREW                 ABSTRACT OF THE DISCLOSURE     A drill screw having an integral driving shank, head, and entering end portion.  The shank has formed on it thread convolutions of uniform outer and root diameters.  The entering end portion has a cylindrical portion coaxial with the shank provided with two flutes inclined with respect to the center axis of the cylindrical portion and disposed on opposite sides of it, and end surfaces of a roof-shape.  Each of the flutes includes conical flute surfaces.  The intersection of each of the conical flute surfaces and each of the end surfaces forms a cutting edge.  And each of the conical flute surfaces forms a rake angle with respect to one of the cutting edges, while each of the end surfaces forms a relief angle with respect to one of the cutting edges.  In a preferred construction, each flute surface includes a cylindrical surface having an axis parallel to one of the end surfaces and a conical flute surface smoothly contiguous with the cylindrical surface.  The intersection of each of the cylindrical surfaces and each of the end surfaces forms a cutting edge.  Each of the cylindrical surfaces forms a rake angle with respect to one of the cutting edges, while each of the end surfaces forms a relief angle with respect to one of the cutting edges.  In another preferred construction, each of the flute surfaces is made up of a plane surface and a substant-ially conical flute surface contiguous with the plane surface. The intersection of each of the plane surfaces and each of the end surfaces forms a cutting edge, and each of the plane surfaces forms a rake angle with respect to one of the cutting edges, while each of the end surfaces forms a relief angle with respect to one of the cutting edges.
Patent CA-1143468-A (CA)
Inventor: MORIO MINORU
IPC: H04N5/783
Filed: 1979-02-14
Granted: 1983-03-22
Abstract: ABSTRACT OF THE DISCLOSURE      In a video signal reproducing apparatus for converting a first video signal having a first field frequency to a second video signal having a second field frequency, there are provided a tape scanning device which is made movable in a direction perpendicular to the recording track on a tape, a system for controlling the speed of the scanning device, a system for controlling the shifting amount of the scanning device in the aforesaid direction according to the difference between the first and second field frequencies, and a system for converting the number of lines contained in one field of the first video signal.          In the above converting system there is included a memory, and the first video signal is written in the memory and read out therefrom so that the predetermined number of lines of the first video signal are discarded or repeated so as to have the number of lines of the second video signal.
Patent CA-1118148-A (CA)
Inventor: GOEKE GEORGE L
IPC: C08F10/02
Filed: 1979-03-28
Granted: 1982-02-09
Abstract: ABSTRACT OF THE DISCLOSURE             A catalytic process for preparing ethylene polymers having a density of ? 0.95 to ? 0.97 and a melt flow ratio of about ? 22 to ? 32 in a low pressure ?    phase process at a produc-tivity of ? 50,000 ?  ? of polymer per pound of Ti with a catalyst formed  from selected organoaluminum compounds and a precursor composition of the formula MgmTi1 (OR)nXp[ED]q Wherein ED is a selected electron donor compound m is ? 0.5 to ? 56 n is 0, 1 or 2 p is ? 2 to ? 116 q = 1.5m + 2 R is a C1 to C14 aliphatic or aromatic hydro-carbon radicals, or COR' wherein R' is a C1 to C14 aliphatic or aromatic hydrocarbon radical, and X is selected from the group consisting of Cl, Br, I or mixture thereof, which catalyst is in particulate form and impregnated in a porous inert carrier material.
Patent CA-1118982-A (CA)
Inventor: CEGLOWSKI JERZY W
IPC: E04B1/58
Filed: 1979-05-23
Granted: 1982-03-02
Abstract: ABSTRACT          A coupling for coupling together a plurality of elongate members, particularly members of a planar framework structure, which coupling includes a separate coupling element welded to each one of the members to be coupled together and a locking ring which is received within a groove in each of the coupling elements.  A frusto-pyramidal expansion member is received within a space between the coupling elements within the locking ring and when urged further into said space forces the coupling elements radially outwardly thus frictionally securing the locking ring against the inner walls of the grooves.  Further members of the framework structure may also be coupled to the coupling by clamping an end of such members between. the locking ring and the inner wall of the grooves.
Patent CA-1129859-A (CA)
Inventor: ANCHER JEAN-FRANCOIS
IPC: C07C43/178
Filed: 1979-06-06
Granted: 1982-08-17
Abstract: ABSTRACT OF THE DISCLOSURE     Novel compounds of formula:                            (I) and their preparation. Depending on the meanings of the substituents the preparations include: Condensing a compound of formula:       with an acid chloride of formula:  R3COCl.  Submitting a compound of formula:                     to a "phase transfer" reaction, in the presence or a "phase transfer catalyst", in a basic medium with a derivative of formulae:       Condensing a compound of formula:       (VIII) with a chloride or tosylate of formula:       Reacting acrylonitrile in the presence of triton B with the compound of formula (VIII).  Condensing a chlorohydrin of formula:       with phosgene, then condensing the obtained compound with a compound of formula:                         and then cyclising the compound thus obtained by means of ethanolic potash or sodium methylate in methanolic solution.  When (I) has the structure:                         (Ia) R(-) submitting to a phase transfer reaction a compound of absolute confi-guration R(-) and of formula:       (IIb) in the presence of a phase transfer catalyst, of (CH3)2SO4 and in a basic medium.  When (I) has the structure:                   (Ib)            , S (+) condensing the compound of absolute configuration R and of formula:       with phosgene, then condensing the obtained compound with p-(cyano-3) benzyloxyaniline, and then cyclising the compound thus obtained by means of ethanolic potash or sodium methylate in methanolic solution.  Re-acting an amine of formula     with a compound of formula:                         Reacting a metanitrobenzyl chloride on a compound of formula:       Reducing with lithium aluminum hydride the compound of formula:       Cyclising by means of phosgene the compound of formula:       Cyclising by means of thiophosgene, either a compound of formula:       or a compound of formula:                         Condensing an acid chloride of formula:                          R18COCl with a compound of formula (I) having the structure   The compounds of formula (I) are antidepressants.
Patent CA-1127987-A (CA)
Inventor: ESTES JOHN H
IPC: C10G1/04
Filed: 1979-06-22
Granted: 1982-07-20
Abstract: RECOVERY OF BITUMEN FROM TAR SAND            (D#76,472-F) ABSTRACT     A  process  for  recovering bitumen,  or  heavy petroleum,  from admixture with sand and similar inorganic materials wherein said bitumen sand mixture is mixed with an aqueous solution of sulfur dioxide to form a second mixture comprising aqueous sulfur dioxide, bitumen and sand; wherein said second mixture is heated to a temperature in the range of about 100°F (38°C) to about 260°F (127°C) and is separated into a bitumen phase free of sand, an aqueous phase and a sand phase.                           - I -
Patent CA-1108141-A (CA)
Inventor: MAURER FRITZ
IPC: C07F9/40
Filed: 1979-07-13
Granted: 1981-09-01
Abstract: ABSTRACT OF THE DISCLOSURE        O-Alkyl-O-(2-cyclopropyl-6-methyl-pyrimidin-4-yl)-thionophosphonic acid esters of the formula   in which R is alkyl, and R1 is alkyl or phenyl, which possess arthropodicidal properties.
Patent CA-1121796-A (CA)
Inventor: WOMACK D GENE
IPC: E21B7/02
Filed: 1979-08-14
Granted: 1982-04-13
Abstract: ABSTRACT OF DISCLOSURE     A portable earth drilling apparatus adapted for helicopter transportation has been designed in light modular form and particularly adapted for use at high elevations under circumstances where prior art drill rigs are not capable of efficient operation.
Patent CA-1131508-A (CA)
Title: Providing supplemental pulverized coal  for load regain
Inventor: RICKARD EARL K
IPC: F23N1/00
Filed: 1979-09-26
Granted: 1982-09-14
Abstract: PROVIDING SUPPLEMENTAL PULVERIZED COAL FOR LOAD REGAIN            Abstract of the Disclosure An apparatus and method for maintaining the heat input to a pulverized coal-fired steam generator when firing a lower grade coal than for which the pulverizers were designed.  A dense phase pulverized coal stream consisting essentially of a mixture of pulverized coal and air having an air-to-coal weight ratio below approximately 1.0 is injected into main pulverized coal stream, thereby providing the necessary supplemental fuel for maintaining the heat input at that full load level.
Patent CA-1128614-A (CA)
Inventor: TAKAOKA KAZUHIKO
IPC: H04Q1/453
Filed: 1979-10-03
Granted: 1982-07-27
Abstract: ABSTRACT OF THE DISCLOSURE         A multi-frequency signal receiving apparatus for receiving signals with at least more than two frequencies and selectively separating these signals, comprising a first maximum value detecting means for detecting the maximum value of the rectified outputs of a plurality of channel filters provided for said signals to be selected; a second maximum value detecting means for detecting the maximum value of the rectified outputs at the intermediate stage of two channel filters for discriminating the signals at both ends of the signal frequency bands of a plurality of said channel filters; and a comparison means for comparing the outputs of said first and second maximum value detecting means with an appropriate weight and thereby detecting the presence or absence of the signal to be detected; whereby based on the result of comparison, the threshold value of discriminators placed at the succeeding stage of said channel filters for discriminating the predominant frequency signal is controlled.  The invention thus permits the elimination of input filers, and realizes an economical and reliable signal receiver.
Patent CA-1146688-A (CA)
Inventor: O'DETTE JOHN H
IPC: B22F9/04
Filed: 1979-11-09
Granted: 1983-05-17
Abstract: ABSTRACT OF THE DISCLOSURE         An improved waste dispersible aluminum powder composition containing from 0.1% to less than 5% of a polyvinylpyrrolidone resin, and processes for its preparation are disclosed.   This composition has the advantages that, in comparison to known compositions containing higher levels of polyvinylpyrrolidone,  it can be more completely separated from hydrocarbons, and, when used as a water based slurry blasting apart sensitizer is effective in smaller diameter bore holes.
Patent CA-1137076-A (CA)
Inventor: BAUER JOHN R
IPC: B01J14/00
Filed: 1979-11-20
Granted: 1982-12-07
Abstract: ABSTRACT OF THE DISCLOSURE    A method and apparatus are described for intimately admixing two liquid components which react chemically with each other immediately after mixing (the mixing of phosgene and polyamines is an example).  The mixing is accomplished by introducing one component in the form of a fan shaped spray into a mixing chamber, and causing this spray to intersect with twin fan-shaped sprays of the second component which latter sprays are introduced into the mixing chamber from preferably diametrically opposed locations in a direction substantially perpendicular to the direction of the first component spray.          The process and apparatus in question provide improved mixing, substantially reduce problems of solids deposition hitherto encountered in similar processes, and give products of greater uniformity and improved physical properties.
Patent CA-1112648-A (CA)
Title: 2-[3,4-disubstituted-phenylimino]-imidazolidines
Inventor: STAEHLE HELMUT
IPC: C07D233/50
Filed: 1979-12-17
Granted: 1981-11-17
Abstract: ABSTRACT          Novel 2- [3,4-disubstituted-phenylimino] -imidazolidines This invention related to 2- [ 3,4-disubstituted-phenyli-mino ] -imidazolidine compounds of general formula (I)         I          [ wherein Z represents a phenyl group substituted in one of the 3- and 4- positions by a fluorine atom and in the remaining 3- or 4- position by a chlorine atom or a methyl, nitro or amino group] and acid addition salts thereof, their preparation and pharmaceutical compositions containing such compounds or salts.  In that the compounds of general formula (I) and their acid addition salts possess presynaptic and .alpha.-adrenergic activity they are suitable for use in the treatment of migraine.